1、本网站免费注册后即可以下载，点击开通VIP会员可无限免费下载！
2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。
3、有任何下载问题，请联系微信客服。
扫描下方二维码，添加微信客服
Purpose of designing: Throgh a guessing game, draw students’ attention to the topic and lead the topic out.
I have no smell . I have no taste.
I also have no colour. I am very
important in our daily lives and you
can drink me .
Do you know who I am?
Guessing game!
Warm-up
1
water
.
It 1__________ from the sky.
Then it 2_____ into the river.
Next,it runs into the sea.
Finally,it 3______from the sea to the sky.
First,the rain drops.
It falls as rain again.
disappears
runs
rises
How does water become rain?
Water cycle
2
Lead in
Writing
3
An experiment
实验
What is the boy doing?
He is doing an experiment .